• Nitrile Image
Nitrile (NBR) is a copolymer of Acrylonitrile and Butadiene rubbers. The ratio of the two polymers affects the properties of a rubber compound. Raising the acrylonitrile content will increase resistance to oil and solvents and improve abrasion resistance. Lowering the acrylonitrile content improves low temperature properties, compression set and fuel resistance.

While Nitrile rubber is considered to be a general purpose material for O-Rings and many other seals, it can be specifically compounded for many purposes. Grades are available for: food processing, use with milk and edible oils, potable water and other specialty applications. Internal lubricants may be added to reduce frictional properties and extend wear. Specialty Nitrile polymers can be produced by carboxylation (see carboxylated Nitrile) or hydrogenation (see HNBR).

The service temperature for PAI Nitrile compounds varies on the low end from -90º to -15º F (-65º to -25º C) depending on acrylonitrile content. On the high side continuous service varies from 225º F to 300º F depending on the curing agent used. PAI offers NBR compounds in hardness ranges from 30 to 95 durometer. Black is the standard color, but many other colors are available.
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N/A 40 N/A Black N/A Peroxide Cured N/A true N/A true
N/A 90 N/A Black N/A SAE J515 Type CH N/A true N/A true
N/A 90 N/A Black N/A Low Temp N/A true N/A true
N/A 40 N/A Black N/A N/A true N/A true
N/A 70 N/A Blue N/A FDA, 3-A, Metal & X-ray Detectable N/A true N/A true
N/A 90 N/A Black N/A FDA N/A true N/A true
N/A 80 N/A Black N/A FDA N/A true N/A true
N/A 60 N/A Black N/A N/A true N/A true
N/A 40 N/A Black N/A 3-A, FDA N/A true N/A true
N/A 50 N/A White N/A FDA, 3-A N/A true N/A true
N/A 50 N/A Black N/A FDA, 3-A N/A true N/A true
N/A 70 N/A Black N/A Ozone Resistant, Low Temp N/A true N/A true
N/A 70 N/A Black N/A Ultra Low Temperature N/A true N/A true
N/A 40 N/A Green N/A N/A true N/A true
N/A 70 N/A Black N/A Internally Lubricated N/A true N/A true
N/A 50 N/A Yellow N/A Internally Lubricated N/A true N/A true
N/A 40 N/A Black N/A FDA N/A true N/A true
N/A 80 N/A Black N/A Mil-G-1086 Type I N/A true N/A true
N/A 80 N/A Black N/A N/A true N/A true
N/A 70 N/A Black N/A Internally Lubricated N/A true N/A true
N/A 70 N/A Black N/A AMS 3228 N/A true N/A true
N/A 60 N/A Black N/A Mil-R-6855 Class 1, Grade 60 N/A true N/A true
N/A 60 N/A Black N/A AMS 3227 N/A true N/A true
N/A 60 N/A Black N/A Ozone Resistant N/A true N/A true
N/A 50 N/A Black N/A Mil-G-1086 Type II N/A true N/A true
N/A 50 N/A Black N/A AMS-R-6855 N/A true N/A true
N/A 50 N/A Black N/A N/A true N/A true
N/A 90 N/A Red N/A N/A true N/A true
N/A 90 N/A Black N/A General Purpose N/A true N/A true
N/A 80 N/A Black N/A Low Temperature N/A true N/A true
N/A 70 N/A Black N/A Low Temperature N/A true N/A true
N/A 70 N/A Black N/A High Tensile N/A true N/A true
N/A 75 N/A Black N/A Oil Resistant N/A true N/A true
N/A 70 N/A Black N/A Teflon Filled N/A true N/A true
N/A 70 N/A Black N/A Teflon Filled N/A true N/A true
N/A 70 N/A Black N/A Low Temperature N/A true N/A true
N/A 60 N/A Black N/A Low Temperature N/A true N/A true
N/A 50 N/A Black N/A Low Temperature N/A true N/A true
N/A 90 N/A Black N/A High Temperature N/A true N/A true
N/A 90 N/A Black N/A Graphite Filled N/A true N/A true
N/A 90 N/A Black N/A Teflon Filled, FDA N/A true N/A true
N/A 90 N/A Black N/A Moly Filled N/A true N/A true
N/A 80 N/A Blue N/A N/A true N/A true
N/A 80 N/A Black N/A General Purpose, AMS 3213 N/A true N/A true
N/A 80 N/A Teal N/A N/A true N/A true
N/A 80 N/A Black N/A High Temperature N/A true N/A true
N/A 80 N/A Black N/A Teflon Filled N/A true N/A true
N/A 80 N/A Black N/A Moly Filled N/A true N/A true
N/A 80 N/A Black N/A N/A true N/A true
N/A 70 N/A Black N/A High Temperature, AMS 7272 N/A true N/A true
N/A 70 N/A Black N/A Internally Lubricated N/A true N/A true
N/A 70 N/A Yellow N/A N/A true N/A false
N/A 70 N/A Black N/A FDA, 3-A N/A true N/A true
N/A 70 N/A Black N/A Good Bond to Metals N/A true N/A true
N/A 70 N/A Black N/A High Temperature N/A true N/A true
N/A 70 N/A Black N/A Moly Filled N/A true N/A true
N/A 70 N/A Black N/A Very Low Temperature N/A true N/A true
N/A 70 N/A Black N/A Water Resistant N/A true N/A true
N/A 65 N/A Black N/A FDA N/A true N/A true
N/A 60 N/A Black N/A FDA N/A true N/A true
N/A 60 N/A Gray N/A N/A true N/A true
N/A 60 N/A White N/A FDA, 3-A N/A true N/A true
N/A 60 N/A Black N/A High Temperature N/A true N/A true
N/A 50 N/A Blue N/A N/A true N/A true
N/A 50 N/A Black N/A Internally Lubricated N/A true N/A true
N/A 50 N/A Yellow N/A Low Compression Set N/A true N/A true
N/A 50 N/A Green N/A Internally Lubricated N/A true N/A true
N/A 50 N/A Black N/A High Temperature N/A true N/A true
N/A 50 N/A Blue N/A N/A true N/A true
N/A 40 N/A White N/A FDA N/A true N/A true
N/A 50 N/A Black N/A Low Temp, General Purpose N/A true N/A true
N/A 70 N/A Black N/A FDA, Non-Crazing N/A true N/A true
N/A 70 N/A Black N/A UL Approved, General Purpose N/A true N/A true
N/A 70 N/A Brown N/A N/A false N/A false
N/A 65 N/A Black N/A Mil-Std-2190 N/A false N/A false
N/A 60 N/A Black N/A BS 3222 M N/A false N/A false
N/A 95 N/A White N/A N/A false N/A false
N/A 95 N/A Black N/A N/A false N/A false
N/A 80 N/A Red N/A N/A false N/A false
N/A 80 N/A Black N/A N/A false N/A false
N/A 70 N/A Purple N/A N/A false N/A false
N/A 70 N/A Orange N/A N/A false N/A false
N/A 70 N/A Red N/A FDA N/A false N/A false
N/A 70 N/A Light Blue N/A FDA N/A false N/A false
N/A 60 N/A Black N/A General Purpose, AMS 3200 N/A false N/A false
N/A 55 N/A Red N/A N/A false N/A true
N/A 90 N/A Blue N/A N/A false N/A false
N/A 90 N/A Black N/A FDA N/A false N/A false
N/A 90 N/A White N/A FDA, 3-A N/A false N/A false
N/A 80 N/A Black N/A Internally Lubricated N/A false N/A false
N/A 80 N/A Black N/A FDA N/A false N/A false
N/A 80 N/A Cream N/A FDA, 3-A N/A false N/A false
N/A 80 N/A Black N/A Graphite Filled N/A false N/A false
N/A 70 N/A Black N/A AMS 7274 N/A false N/A false
N/A 70 N/A Blue N/A N/A false N/A false
N/A 70 N/A Rust Red N/A FDA N/A false N/A false
N/A 70 N/A Teal N/A N/A false N/A false
N/A 70 N/A Gray N/A FDA N/A false N/A false
N/A 70 N/A Tan N/A FDA N/A false N/A false
N/A 70 N/A Green N/A N/A false N/A false
N/A 70 N/A Black N/A Graphite Filled N/A false N/A false
N/A 75 N/A Black N/A Teflon Filled N/A false N/A false
N/A 60 N/A White N/A FDA N/A false N/A false
N/A 60 N/A Yellow N/A N/A false N/A false
N/A 60 N/A Rust Red N/A N/A false N/A false
N/A 60 N/A Blue N/A N/A false N/A false
N/A 60 N/A Green N/A N/A false N/A false
N/A 60 N/A Black N/A Graphite Filled N/A false N/A false
N/A 60 N/A Black N/A Teflon Filled N/A false N/A false
N/A 60 N/A Black N/A Moly Filled N/A false N/A false
N/A 65 N/A Black N/A Conductive N/A false N/A false
N/A 50 N/A Black N/A Oil Resistant, Good Elongation N/A false N/A false
N/A 50 N/A Black N/A FDA N/A false N/A false
N/A 50 N/A White N/A N/A false N/A false
N/A 50 N/A Black N/A Teflon Filled N/A false N/A false
N/A 50 N/A Black N/A Moly Filled N/A false N/A false
N/A 60 N/A Black N/A Fuel Resistant N/A false N/A false
N/A 50 N/A Black N/A FDA N/A false N/A false
N/A 40 N/A Black N/A Oil Resistant, Good Elongation N/A false N/A false
N/A 40 N/A Black N/A Teflon Filled N/A false N/A false
N/A 40 N/A Black N/A General Purpose N/A false N/A false
N/A 30 N/A Black N/A General Purpose N/A false N/A false
N/A 90 N/A Yellow N/A N/A false N/A false
N/A 70 N/A White N/A FDA, 3-A N/A false N/A false
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